Iron Horse
Senior Member
But, if a (relatively) stationary impeller is so fragile as to be damaged by a little rocking (or moving up and down, end to end) while on the trailer, how does it make it through a day of spinning at xx thousand RPM with all the shock and vibration of digging/hammering/walking on rock etc.?
The shaft is susspended by the pressurised oil , it can never touch the bearings just like a con rod bearing cannot touch the journal even with the shock loading the piston induces upon it .
I don't agree that someone who doesn't believe the urban legend of the turbo is lazy or unprofessional.
I didn't say that , but a person that does cover the stack is , in my opinion very professional and caring and will be the guy coming back next time theres a shift to be done .
On edit , just a question i need answered . As no one seems to be 100% certain in their own mind if this does occur . What WOULD the reason be to NOT cover the stack ?
And if my machine had an unexpected Turbo failure after it was hauled with the stack uncovered , the driver would either be getting his chequebook out or getting his suit dry cleaned . The judge would be shown by my barister that it is standard practice with big firms and would order the damages paid . That's only a little guy like me , i wonder what would happen when a multi national mining company has a few Turbos from 200 ton dump trucks go down after cartage , with all the documented oil analysis testing , strict servicing and all the machines fitted with Turbo timers ?$$$$$$$$$$
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